- Hardware accelerated 2D and 3D graphics rendering through Stage 3D
- The Starling 2D framework for hardware accelerated, fluid 2D graphics
- New audio capabilities
- New API for providing hints to the garbage collector
- Native JSON
- Native Extensions
For those who would like to start taking advantage of these capabilities in their Flash Pro work, you can install the AIR 3.0 SDK into your existing Flash Professional installation and begin targeting it right away.
For complete instructions, see this TechNote: